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3 years ago

Evaluate the following expression if a=-9, b=-7,c=9 and d=3 2cd + 3ab =

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

Answer:

<h3>The answer is 243.</h3>

Step-by-step explanation:

To evaluate the expression substitute the values of a , b , c and d into the above expression

a = - 9

b = - 7

c = 9

d = 3

So we have

2cd + 3ab = 2(9)(3) + 3(-9)(-7)

= 2(27) + 3( 63)

= 54 + 189

We have the final answer as

Hope this helps you

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3 years ago

suppose you have a coupon for 20% discount you buy a game that costs $38 the sales tax rate is 5.5% sales tax applies to the cos

Lostsunrise [7]

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3 years ago

Read 2 more answers

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ycow [4]

60% - 3/5
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3 years ago

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nignag [31]

Answer:

b .60%

Step-by-step explanation:

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3 years ago

The cost of a laptop computer in 2007 was $1,250. In 2009, the price decreased to $1,100.

sashaice [31]

Given : The Cost of Laptop in 2007 is $1250

Given : The Cost of Laptop in 2009 is $1100

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A) Percent Decrease in the Price of the Laptop from 2007 to 2009 is :

$\mathsf{\implies \frac{Decrease\;in\;Price\;of\;Laptop\;from\;2007\;to\;2009}{Price\;of\;Laptop\;in\;2007} \times 100}$

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Given : Decrease in Price of Laptop from 2009 to 2010 = $165

B) Percent Decrease in the Price of the Laptop from 2009 to 2010 is :

$\mathsf{\implies \frac{Decrease\;in\;Price\;of\;Laptop\;from\;2009\;to\;2010}{Price\;of\;Laptop\;in\;2009} \times 100}$

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3 years ago